Hello Patrick,
Are you still facing this issue? If yes, please let us know below details:
1. Is this error coming when you open the process? Or when you try to change something in it?
2. Did you modified / deleted some lanes that were used in the project?
This error occurs when you do lot of changes in the process, and if there was an issue while saving the last version (network issue, process configuration issue).
Awaiting your response.
Best regards,
Fujitsu RunMyProcess Support